Shimano Alfine SG-S505 Di2 8-Speed Internally Geared Disc Brake Rear 32h Hub

Shimano Alfine SG-S505 Di2 8-Speed Internally Geared Disc Brake Rear 32h Hub 8 speeds with a 307% gear range Nexus/Alfine 8-speed hub gear range: 1st gear = 0.527, 2nd gear = 0.644, 3rd gear = 0.748, 4th gear = 0.851, 5th gear = 1.00 (direct drive), 6th gear = 1.223, 7th gear = 1.419, 8th gear = 1.615 Recommended gear ratio: 2.0-2.25 to 1 Not intended for off-road use as standing on the pedals, riding up steep hills or using an too low of a gear ratio may damage the pawls inside the hub Rotor lockring not included

Shimano Alfine SG-S505 Di2 Disc Brake 8-spd 32h Hub Black